iOS (Jailbroken): The iPhone doesn't support multiple wallpapers, but if you like to spice things up, Pages+ is a jailbreak app that allows you to customize the background for each page on your home screen.

Pages+ turns each of your iPhone's home screen pages into cards to help separate them. For example, on your main home screen, you could set it up with your favorite image, and then on the second page, set it as something completely different to better embrace the content there. You can also customize the colors so each page has a different feel to it. Unfortunately, Pages+ only works with theme packs, and you can't customize the wallpapers with your own choices unless you make your own. Still, if you can't decide between multiple wallpapers, Pages+ is a great way to change it up.